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/*
LUFA Library
Copyright (C) Dean Camera, 2011.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#define __INCLUDE_FROM_USB_DRIVER
#include "../USBMode.h"
#if defined(USB_CAN_BE_HOST)
#include "../Pipe.h"
uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
volatile uint8_t USB_SelectedPipe = PIPE_CONTROLPIPE;
volatile uint8_t* USB_PipeFIFOPos[PIPE_TOTAL_PIPES];
bool Pipe_ConfigurePipe(const uint8_t Number,
const uint8_t Type,
const uint8_t Token,
const uint8_t EndpointNumber,
const uint16_t Size,
const uint8_t Banks)
{
Pipe_SelectPipe(Number);
Pipe_EnablePipe();
(&AVR32_USBB.upcfg0)[Number] = 0;
(&AVR32_USBB.upcfg0)[Number] = (AVR32_USBB_ALLOC_MASK |
((uint32_t)Type << AVR32_USBB_PTYPE_OFFSET) |
((uint32_t)Token << AVR32_USBB_PTOKEN_OFFSET) |
((uint32_t)Banks << AVR32_USBB_PBK_OFFSET) |
((EndpointNumber & PIPE_EPNUM_MASK) << AVR32_USBB_PEPNUM_OFFSET));
USB_PipeFIFOPos[Number] = &AVR32_USBB_SLAVE[Number * 0x10000];
Pipe_SetInfiniteINRequests();
return Pipe_IsConfigured();
}
void Pipe_ClearPipes(void)
{
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_SelectPipe(PNum);
(&AVR32_USBB.upcfg0)[PNum] = 0;
(&AVR32_USBB.upcon0clr)[PNum] = 0xFFFFFFFF;
USB_PipeFIFOPos[PNum] = &AVR32_USBB_SLAVE[PNum * 0x10000];
Pipe_DisablePipe();
}
}
bool Pipe_IsEndpointBound(const uint8_t EndpointAddress)
{
uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();
for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
{
Pipe_SelectPipe(PNum);
if (!(Pipe_IsConfigured()))
continue;
uint8_t PipeToken = Pipe_GetPipeToken();
bool PipeTokenCorrect = true;
if (PipeToken != PIPE_TOKEN_SETUP)
PipeTokenCorrect = (PipeToken == ((EndpointAddress & PIPE_EPDIR_MASK) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT));
if (PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)))
return true;
}
Pipe_SelectPipe(PrevPipeNumber);
return false;
}
uint8_t Pipe_WaitUntilReady(void)
{
#if (USB_STREAM_TIMEOUT_MS < 0xFF)
uint8_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#else
uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
#endif
uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();
for (;;)
{
if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
{
if (Pipe_IsINReceived())
return PIPE_READYWAIT_NoError;
}
else
{
if (Pipe_IsOUTReady())
return PIPE_READYWAIT_NoError;
}
if (Pipe_IsStalled())
return PIPE_READYWAIT_PipeStalled;
else if (USB_HostState == HOST_STATE_Unattached)
return PIPE_READYWAIT_DeviceDisconnected;
uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();
if (CurrentFrameNumber != PreviousFrameNumber)
{
PreviousFrameNumber = CurrentFrameNumber;
if (!(TimeoutMSRem--))
return PIPE_READYWAIT_Timeout;
}
}
}
#endif
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